Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.

Inpatient Payment Groups (MS-DRG)

MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v43.0 (FY2026), Appendix B.

A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.

Code Set: Valid FY2026 and FY2027. FY2026 took effect October 1, 2025.

Official Registry Overview & Definition

Corrosions involving 80-89% of body surface with 0% to 9% third degree corrosion is a billable ICD-10-CM diagnosis code (T32.80).

Official ICD-10-CM classifications closest to T32.80 in its code family, with their registry titles.

T32.74 — Corrosions involving 70-79% of body surface with 40-49% third degree corrosion
T32.75 — Corrosions involving 70-79% of body surface with 50-59% third degree corrosion
T32.76 — Corrosions involving 70-79% of body surface with 60-69% third degree corrosion
T32.77 — Corrosions involving 70-79% of body surface with 70-79% third degree corrosion
T32.8 — Corrosions involving 80-89% of body surface
T32.81 — Corrosions involving 80-89% of body surface with 10-19% third degree corrosion
T32.82 — Corrosions involving 80-89% of body surface with 20-29% third degree corrosion
T32.83 — Corrosions involving 80-89% of body surface with 30-39% third degree corrosion
T32.84 — Corrosions involving 80-89% of body surface with 40-49% third degree corrosion
T32.85 — Corrosions involving 80-89% of body surface with 50-59% third degree corrosion

Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.

Corrosion (injury) (acid) (caustic) (chemical) (lime) (external) (internal), extent (percentage of body surface), 80-89 percent (0-9 percent third degree)
Corrosion (injury) (acid) (caustic) (chemical) (lime) (external) (internal), unspecified site with extent of body surface involved specified, 80-89 percent (0-9 percent third degree)